How i can get him back?

its my very first time writing a blog like this, so im kinda scared! :P but im hoping that u guys will have some good comments on wot im about to write and the story im about to tell u
im a 23-year-old girl/woman/female(wotever u call it!), almost 2years ago i got to know this guy who is 4 years older than me
my boyf is so jealous
he told me if i want him i should never betrayed him with boys, I promise him i’ll never do that. then he traveling to study abroad, but after 2 month i was in restaurant with my friend. we saw 2 boys then she start to speaking to them, then they asked us to eat breakfast with them. after that my boyf feeling i betrayed him, than he told me he feels i did some thing wrong.
I was scared cuz he was screaming me than i told him I sleep with another man and I dont want u I hate your way with me .
he thinks I betrayed him. because I told him I have relationship with another boy.
how I can get him back to me. because I love him till die
is that clear now